This Part applies in relation to the supply of goods or services:
(a) by a Commonwealth authority; or
(b) by a foreign corporation; or
(c) by a trading corporation in the course of, or for the purposes of, its trading operations; or
(d) by a financial corporation in the course of, or for the purposes of, its business operations; or
(e) by a body corporate incorporated in a Territory (other than the Northern Territory); or
(f) in a Territory (other than the Northern Territory); or
(g) in the course of, or in connection with, trade or commerce:
(i) among the States; or
(ii) between a State and a Territory; or
(iii) between 2 Territories;
and not otherwise.